Appendix D POINT LOMA HIGH SCHOOL WHOLE SITE MODERNIZATION AND ATHLETIC FACILITIES UPGRADE PROJECT. Environmental Issues Letter

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1 POINT LOMA HIGH SCHOOL WHOLE SITE MODERNIZATION AND ATHLETIC FACILITIES UPGRADE PROJECT Appendix D Environmental Issues Letter Prepared by Ninyo & Moore October 26, 2015

3 1(1R90 &/ft:oo~e~~, Js; Ge orechnrcal,1nt1 t nv1ronmenwl Scil'll<.l'~ Cf.Jn'>ultctnt\ October 26, 2015 Project No. I I Mr. Eric Lathers BRG Consulting 304 Ivy Street San Diego, California 9210 l Subject: Environmental Issues Letter Point Lorna High School 2335 Chatsworth Boulevard San Diego, California Dear Mr. Lathers: Ninyo & Moore understands that the San Diego Unified School District (District) is proposing a whole site modernization of the existing Point Lorna High School (Figures I and 2). The modernization includes building demolition and renovation, construction of a new building, external security enclosures, a bus turnout, and expansion of the parking lot. This letter report has been prepared to identify potential environmental issues at the site that may be encountered during modernization activities. EXISTING ENVIRONMENTAL REPORTS Existing environmental reports were not available for review. ONLINE DATABASE REVIEW Readily available online regulatory agency databases were reviewed by Ninyo & Moore to document locations of known hazardous waste sites, landfills, leaking underground storage tanks, permitted facilities that utilize underground storage tanks (USTs), and facilities that use, store, or dispose of hazardous materials/wastes. The following is a summary of pertinent information Ruffin Road San Diego. California Phone ( Fax ( San Diego Irvine los Angeles RanchO Cucamonga Oakland San Francisco San Jose Sacramento Las Vegas Phoenix Tucson Prescott Valley Denver Houston

4 2335 Chatsworth Boulevard San Diego, California October 26, Project No Online Regulator-y Databases Online Database/Website California Depa1tment of Toxic Substances Control (DTSC) Hazardous Waste Tracking System DTSC Envirostor DTSC Cortese List State Water Resources Control Board (SWRCB) GeoTracker SWRCB List of Facilities with Deed Restrictions DTSC List of Facilities with Deed Restrictions California Depmtment of Resources Recycling and Recove1y Solid Waste Information System (SWIS) California Department of Oil, Gas, and Geothermal Resources United States Pipeline and Hazardous Materials Safety Administration, National Pipeline Mapping System (NPMS) Map Viewer United States Anny Corps of Engineers (USACE) Formerly Used Defense Sites (FUDS) Database Findings The site address is associated with one active (CAD ) United States Environmental Protection Agency (EPA) identification (ID) number. Manifests are on record associated with the active EPA ID number for the years 1993 through The types of waste disposed of from the site under manifest are unspecified aqueous solution ( tons), ignitable waste (- 1.3 tons), corrosives ( tons), reactivity ( tons), bariurn ( tons), cadmium ( tons), and lead (- 4 tons}. The site is listed as a school investigation site. A Phase I Environmental Site Assessment (ESA) was repo1tedly perf01med at the site in 2003 and, according to the database, no contaminants were found. The DTSC determined "No action required" for the site. Based on this information the listing does not represent an environmental concem. The Phase I ESA was not available for review. The site was not listed. The site address is listed associated with one closed unauthorized release case (H I). According to the San Diego County Depa1tment of Environmental Health (DEH) records, contaminated soil was discovered during the removal of one 55-gallon waste oil UST in July of 1988 adjacent to the auto shop (Attachment A and Figure 2). According to a Site Remediation Summary, dated Janumy 23, 1990, approximately 2,800 pounds of impacted soil was removed from the site and the maximum concentration of total petroleum hydrocarbon (TPH)-impacted soil remaining on site is 980 milligrams per kilogram (mglkg) located at approximately 2.5 feet below the auto shop building footing (Figure 2). According to GeoTracker, the case was closed in FebiUary 1990 and the DEH closure letter was not on file. DEH records are provided in Attachment A. The si te was not listed. The site was not listed. The Former Famosa Boulevard Secondmy Deposit Site (currently located on Correia Middle School) is located approximately 0.5 mile n01thwest of the site. According to the database, the facility is closed and was a so lid waste disposal site, that is currently owned by the San Diego Unified School District. According to Envirostor, the facility is a former burn site and under the oversight of the DTSC and is CUITently undergoing remedial action. Based on the status of the facility (closed and undergoing remedial action) and distance from the site (0.5 mile) the facility does not represent an environmental concern to the site. Oil and gas wells were not depicted on or within I,500 feet of the site. Pipelines are not depicted within I,500 feet of the site. FUDS sites were not listed within I mile of the site L.doc 2

5 2335 Chatsworth Boulevard San Diego, California October 26, Project No AS-BUILT PLAN REVIEW As-built plans provided by the District for the site were reviewed by Ninyo & Moore for the years 1935 through The following items of potential environmental concern were noted: According to an as-built plan, dated July 8, 1958, an 8,500-gallon oil UST and associated piping were located in the central portion of the site adjacent to the east of the boiler room. It is not known whether the UST was removed. According to as-built plans, dated September 9, 1946 and March 13, 1968, a rifle range was present in the southwest portion of the site approximately 50 feet east of Chatsworth Boulevard (Figure 2). Metal casings from rifle ranges typically contain high concentrations of lead and may have impacted shallow soil in the vicinity. An auto shop was depicted on an as-built plan dated October 10, According to DEH records reviewed, a 55-gallon waste oil UST was removed in 1988 from an area adjacent to the southwest of the auto shop near the intersection of Zolo Street and Cove Street. The unauthorized release case associated with the waste oil UST is discussed in the Online Regulatory Databases table above. The as-built plans referenced above are provided in Attachment B. Other items of environmental concern were not noted. CONCLUSIONS AND RECOMMENDATIONS Based on the information reviewed above, Ninyo & Moore provides the following conclusions and recommendations: An approximately 8,500-gallon oil UST and associated piping were located in the central portion of the site adjacent to the east of the boiler room (Attachment A). It is not known whether the UST was removed. Based on this information, there is the potential that the UST is present and that petroleum hydrocarbon impacted soil or groundwater may be present in the vicinity of the UST. If project activities involve the disturbance of soil in the vicinity of the UST, then the soil will need to be handled in accordance with applicable local, State, and Federal laws and guidelines. ln addition, if the impacted soil is proposed for disturbance, Ninyo & Moore recommends that a Soil Management Plan (SMP) and a Community Health and Safety Plan (CHSP) be prepared and included in the bid specifications for the project L.doc 3

6 Chatsworth Boulevard San Diego, California October 26, 2015 Project No A 55-gallon waste oil UST was removed from the auto shop near the intersection of Zolo Street and Cove Street in 1988 (Attaclunent A). TPH-impacted soil remains on site located approximately 2.5 feet below the building footing. If project activities involve the disturbance of soil in the vicinity of the UST at depths of 2.5 feet bgs or greater, then the soil will need to be handled in accordance with applicable local, State, and Federal laws and guidelines. In addition, if the impacted soil is proposed for disturbance, Ninyo & Moore recommends that an SMP and a CHSP be prepared and included in the bid specifications for the project. A rifle range was located in the southwest p01tion of the site approximately 50 feet east of Chatsworth Boulevard (Attachment A). Metal casings from rifle ranges may contain high concentrations of lead that may have impacted shallow soil in the vicinity. If project activities involve the disturbance of soil in the vicinity of the former rifle range, Ninyo & Moore recommends that shallow soil samples be collected and analyzed for total lead prior to construction activities. Based on the estimated age of the construction of the buildings on the site (i.e., pre-1935), there is the potential that asbestos-containing building materials and lead-containing surfaces are present. A hazardous building materials survey should be performed prior to the demolition of the site structures. If a survey identifies lead-based paint on the exterior of the structures, then an investigation of potential soil contamination from lead may be required or recommended by regulatory agencies reviewing the proposed project. We appreciate the opportunity to be of service to you on this project. Sincerely, ~&~ ~i anne Cortright Senior Staff Environmental Geologist h_ Steven A. Fry, PG Senior Geologist BMC/LB/SAF/gg Attachments: References Figure 1 - Site Location Figure 2 -Site and Vicinity Attachment A - Regulatory Agency Records Attaclunent B - Select As-Built Plans Distribution: ( 1) Addressee L dot 4

7 2335 Chatsworth Boulevard San Diego, California October 26, 2015 Project No REFERENCES Army Corps of Engineers, 2015, Formerly Used Defense Sites Geographic Information System website, accessed in October. California Department of Toxic Substances Control, 2015, Envirostor Website: accessed in October. California Integrated Waste Management Board, 2015, Solid Waste Information System database, accessed in October. California State Water Resources Control Board, 2015, GeoTracker Website: accessed in October. United States Pipeline and Hazardous Materials Safety Administration, 2015, National Pipeline Mapping System Map Viewer, accessed in October L.doc